Ventilator.



B. c. NOE. VENTILATOR. APPLICATION FILED APR. 16, 1909.

Patented Aug. 31, 1909.

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LZER c'URTI's NOE; or CHICAGO, ILLINOIS.

VENTILATOR.

. Specification of Letters Patent.

Application filed April 15, 1909. Serial No. 489,970.

To all whom it may concern:

Be it known that I, ELZER C. Non, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Ventilators, of whichthe following is a specification, reference being had therein to theaccompanying drawing.

lily invention relates to ventilators, and particularly to ventilatorsadapted to supply air to the interior of cars, boats or buildings.

The primary object of my invention is to provide aventilatorhaving adamper which will automatically shift in the intake pipe to divert airinto a supply pipe depending upon the direction of motion of theventilator or air, a further object being to provide a secondary damperwhich will be automatically operated by theprimary damper to control theamount of air passing into the interior of the car, boat or building.

The invention consists in the matters hereinafter described and pointedout in the appended claims.

In the accompanying drawings which illustrate a practical embodiment ofthe features of my invention :Figure 1 is aview showing a car in sideelevation provided with. a plurality of my improved ventilators; Fig. 2is a sectional view of one of the ventilators shown in Fig. 1 Fig. 3 isa sectional view on the line 33 of Fig. 2; Fig. 4 is a detailview of thelower portion of the damper in themtake; Fig. 5 is a sectional view of aform employing but a single damper, and Fig. 6 is a sectional view'onthe line 66 of Fig. 5.

In the drawings the reference numeral 7 indicatesa car body which isprovided with a plurality of my ventilators to supply air to theinterior thereof, it being of course understood that the car is employedmerely as a means of illustrating an application of my invention andthat in the practical use of the invention this car structure may be inthe form of aboat or building or other analogous structuref Theventilators may be applied at any desired point, and as shown in Fig. 1they are located to supply air to the interior at various places on thecar as through the floor or the roof. Each ventilator consists ofasupply pipeS suitably attached to the body. or structure and leading tothe interior, and a two-port intake pipe or funnel 9 connected to theouter end of the supply pipe. In the case of a car or boat the portsopen or lead toward the front and rear thereof, while in thecase of abuilding they may open in a plane parallel with. the line of the window(for example) as illustrated at the top of the structure of Fig. 1 or inany other suitable disposition and arrangement. The supply pipe andintake pipe may of course be of any size or form such as round, squareor oval, and generally in practice the cross-sectional area of theintake pipe will be larger than the crosssectional area of the supplypipe; in the present embodiment they are square or rectangular incross-section, and the ports are more or less flared or funnel-shape.

A movable damper is located in the intake pipe and in the presentembodiment it consists of a plate 10 pivoted as at 11 upon the lowerportion of the interior of the intake pipe at or near the median line ofthe supply pipe and extending across and corresponding to the width ofthe intake so as to close the passage therethrough, its upper end beingextended a slight distance as at 12 into the pipe 8 so that the latterwill act as a stop to limit its movement on its pivot in bothdirections, the extended portion in the present form being substantiallythe width of the supply pipe. I prefer to balance the damper inintermediate position with respect to the supply pipe by any suitablemeans, such for example as a spring or dash-pot, to normally hold itsubstantially neutral and approximately in the central line of thesupply pipe when not subjected to Wind pressure or when the air pressureis substantially equal on its two sides. For this purpose I use a springhinge arrangement, such for example as that shown in Fig. 4, it beingunderstood that the same or similar arrangement may be used in either ofthe embodiments shown in Figs. 2 and 5. In this arrangement a spring orsprings 13 is or are adapted to bear at one end upon the damper and atthe other upon the floor of the intake so as to hold the damper in itscentral position as shown in full lines in Figs. 2 and 5.

In the form illustrated in Figs. 2 and 3 a regulating damper 14 iscentrally mounted in the supply pipe 8 upon a pivot 15 and is flexiblyconnected at its lower end to the upper or free end of the primarydamper 10, as by any suitable joint 16, so that when the primary dampermoves more or less toward either of its extreme positions the secondarydamper will be correspondingly moved to more or less close the pipe 8 tocontrol the Patented Aug. 31, 1909.

amount of air passing to the interior through V the pipe. Theseconddamper is preferably perforated or retieulat'ed'as shown in Fig. 3for example, so that the air is not blown into the ear in a compact massor draft under conditions of high speed or velocity but is diffused andbroken up.

The controlling damper is normally balanced in central position, andwhen the Wind pressure is increased upon either side, as When the car orboat is moved more or less rapidly in elther directlon or When the Windenters either end of the intake, the damper shifts more or less towardeither of its extreme positions represented by dotted lines in Figs..2and 5 and diverts the air entering gardless oi-the velocity or directionof the Wind or intake funnel.

The regulatingfunction of the secondary damper may be accomplished bymaking this damper imperforate and smaller than the supply pipe so thata predetermined quantity of air may pass it in any position ofadjustment.

By the use of this invention the ventilators may be adjusted or set tosupply a predetermined quantity of air according to conditions ofvelocity of Wind or funnel; the

springs may be set or adjusted for different resistances or pressures toallow the primary damper to yield more or less to insure a uniformsupply under estimated pressures dependent upon speed or Velocity ofWind or funnel, and also to open the regulating damper more or less tocontrol the amount of air passing to the interior under similarlyvariable conditions. By reason of these capabilities of the presentinvention all manual manipulation or adjustment after the dampers areset is dispensed with, and attention or care by a user or attend ant iseliminated.

Having described my invention, I claim 1. A ventilator comprising asupply pipe, a two-port intake pipe leading to the supply pipe, and adamper mounted in and closing 'the passage through the intake pipe andbalanced in substantially intermediate position in the supply pipe andadapted to be automatically shifted by Wind pressure to direct air intothe supply pipe from either port.

2. A ventilator com rising a supply pipe, a two-port intake pipe leadingto the supply pipe, and a balanced damper movably mounted in and closingthe passage through the intake pipe in approximately the median line ofthe supply pi )e and having its upper end extending intotlic supplypipe, whereby the dam )er Will divert to the interior a'unilorm supp yof air under varying velocities of funnel or Wind.

3. A ventilator comprising a sup 'ly pipe, a perforated damper mountedin tie supply pipe, a two-port intake pipe leading to the supply pipe, abalanced damper mounted in the intake pipe and closing the passagetherethrough to divert air to the interior from either port, and aconnection between the dampers.

4. A ventilator comprising a sup ly pipe, a

regulating damper mounted in tie supply pipe, a two-port intake pipeleading to the supply pipe, a balanced damper mounted in the intake pipeand closing the passage therethrough to divert air to the interior fromeither port, and a connection between the dampers.

In testimony whereof I aflix my signature in presence of two Witnesses.

ELZER CURTIS NOE. lVitnesses:

GEORGE R. HARBAUGII, J. MoRoBERTs.

